CpmmSPInstruction (Apache SystemDS 3.1.0 API)

java.lang.Object
- org.apache.sysds.runtime.instructions.Instruction
- - org.apache.sysds.runtime.instructions.spark.SPInstruction
  - - org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction
    - - org.apache.sysds.runtime.instructions.spark.BinarySPInstruction
      - org.apache.sysds.runtime.instructions.spark.AggregateBinarySPInstruction
        
        org.apache.sysds.runtime.instructions.spark.CpmmSPInstruction

All Implemented Interfaces:

LineageTraceable
```
public class CpmmSPInstruction
extends AggregateBinarySPInstruction
```
Cpmm: cross-product matrix multiplication operation (distributed matrix multiply by join over common dimension and subsequent aggregation of partial results). NOTE: There is additional optimization potential by preventing aggregation for a single block on the common dimension. However, in such a case we would never pick cpmm because this would result in a degree of parallelism of 1.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.sysds.runtime.instructions.spark.SPInstruction
  SPInstruction.SPType
- Nested classes/interfaces inherited from class org.apache.sysds.runtime.instructions.Instruction
  Instruction.IType

Field Summary
- Fields inherited from class org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction
  input1, input2, input3, output
- Fields inherited from class org.apache.sysds.runtime.instructions.Instruction
  DATATYPE_PREFIX, FEDERATED_INST_PREFIX, GPU_INST_PREFIX, INSTRUCTION_DELIM, LITERAL_PREFIX, OPERAND_DELIM, SP_INST_PREFIX, VALUETYPE_PREFIX

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AggBinaryOp.SparkAggType`	`getAggType()`
`static CpmmSPInstruction`	`parseInstruction(String str)`
`void`	`processInstruction(ExecutionContext ec)`	This method should be used to execute the instruction.

Methods inherited from class org.apache.sysds.runtime.instructions.spark.ComputationSPInstruction
checkpointRDD, getLineageItem, getOutputVariableName

Methods inherited from class org.apache.sysds.runtime.instructions.spark.SPInstruction
getGraphString, getSPInstructionType, getType, postprocessInstruction, preprocessInstruction, requiresLabelUpdate

Methods inherited from class org.apache.sysds.runtime.instructions.Instruction
getBeginColumn, getBeginLine, getEndColumn, getEndLine, getExtendedOpcode, getFilename, getInstID, getInstructionString, getLineNum, getOpcode, getOperator, getPrivacyConstraint, printMe, setInstID, setLocation, setLocation, setLocation, setLocation, setPrivacyConstraint, setPrivacyConstraint, toString, updateInstructionThreadID

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.sysds.runtime.lineage.LineageTraceable
getLineageItems, hasSingleLineage

- Method Detail
  - parseInstruction
```
public static CpmmSPInstruction parseInstruction(String str)
```
  - processInstruction
```
public void processInstruction(ExecutionContext ec)
```
    Description copied from class: Instruction
    
    This method should be used to execute the instruction.
    
    Specified by:
    
    processInstruction in class SPInstruction
    
    Parameters:
    
    ec - execution context
  - getAggType
```
public AggBinaryOp.SparkAggType getAggType()
```